CN113874670A - Tunnel for drying fruits and vegetables - Google Patents
Tunnel for drying fruits and vegetables Download PDFInfo
- Publication number
- CN113874670A CN113874670A CN202080041232.5A CN202080041232A CN113874670A CN 113874670 A CN113874670 A CN 113874670A CN 202080041232 A CN202080041232 A CN 202080041232A CN 113874670 A CN113874670 A CN 113874670A
- Authority
- CN
- China
- Prior art keywords
- air
- fruits
- hot air
- tunnel
- drying
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B17/00—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement
- F26B17/02—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces
- F26B17/04—Machines or apparatus for drying materials in loose, plastic, or fluidised form, e.g. granules, staple fibres, with progressive movement with movement performed by belts carrying the materials; with movement performed by belts or elements attached to endless belts or chains propelling the materials over stationary surfaces the belts being all horizontal or slightly inclined
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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23N—MACHINES OR APPARATUS FOR TREATING HARVESTED FRUIT, VEGETABLES OR FLOWER BULBS IN BULK, NOT OTHERWISE PROVIDED FOR; PEELING VEGETABLES OR FRUIT IN BULK; APPARATUS FOR PREPARING ANIMAL FEEDING- STUFFS
- A23N12/00—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts
- A23N12/08—Machines for cleaning, blanching, drying or roasting fruits or vegetables, e.g. coffee, cocoa, nuts for drying or roasting
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B15/00—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form
- F26B15/10—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions
- F26B15/12—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined
- F26B15/122—Machines or apparatus for drying objects with progressive movement; Machines or apparatus with progressive movement for drying batches of material in compact form with movement in a path composed of one or more straight lines, e.g. compound, the movement being in alternate horizontal and vertical directions the lines being all horizontal or slightly inclined the objects or batches of material being carried by transversely moving rollers or rods which may rotate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/004—Nozzle assemblies; Air knives; Air distributors; Blow boxes
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B21/00—Arrangements or duct systems, e.g. in combination with pallet boxes, for supplying and controlling air or gases for drying solid materials or objects
- F26B21/02—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure
- F26B21/04—Circulating air or gases in closed cycles, e.g. wholly within the drying enclosure partly outside the drying enclosure
Abstract
The invention relates to a drying tunnel for fruits or vegetables, comprising an impingement and heating chamber (2) and a plenum (3) configured to receive outgoing hot air (6) generated by a generator in the impingement and heating chamber (2), the plenum (3) comprising on its bottom surface (1) staggered holes (10), wherein the hole density is 150 and 300 holes per square meter (10), wherein the holes (10) are configured to vertically discharge distributed hot air (4) from inside the plenum (3) towards a transport system (9), the transport system (9) being configured to move the fruits and vegetables to be dried.
Description
Technical Field
In the industrial process of fruit handling, two drying processes are of prominent importance, namely a second process after washing and before waxing (referred to as "pre-drying stage") and after waxing (referred to as "drying stage") for preventing the fruits from sticking together making handling difficult and preventing their appearance from deteriorating.
The present invention relates to a high-capacity drying tunnel (tunnel) for fruits, vegetables or the like for drying said fruits in a step following washing or waxing, thus improving the existing techniques currently used, enlarging the work load and the drying speed.
Background
In current systems of existing drying tunnels for conventional use, the fruit is moved into passing through one of its ends by means of a moving roller conveyor. Although this transport can be done in many ways, one of the most commonly used is the way of including rollers, as it enables the fruit to rotate and move simultaneously. The wet fruit advances over a roller, wherein a fluid flow of hot air is applied from a pressure generator, usually located in the upper part of the tunnel, to facilitate the air flow and the output towards the outside of the water covering the surface of the fruit by means of gravity.
The mechanical configuration of the tunnel is designed so that the air flow is pressed against the fruit along the entire path, causing it to collide with the fruit, causing it to dry from the outlet by means of longitudinal grooves called "air knives". The direction of flow may be in the same direction as the fruit moves, or counter-current, so as to catch (catch) the fruit as the temperature increases in the advancing direction, depending on the manufacturer.
One disadvantage of this system is that the hot air tends to remain in the upper part of the duct where it encounters less flow resistance, so the tunnel is dimensioned to ensure a contact time between the fruit and the hot air sufficient to achieve drying, the air outlet being very close to the fruit with sufficiently high speed, without altering the characteristics of the product.
To improve drying performance, some models have fans installed in the upper portion of the tunnel to accelerate the air flow, since the air flow is greatly reduced as it approaches the end of the tunnel. However, uneven flows may result, which do not dry all the pieces evenly, receive excessive hot air in some areas and insufficient flow in other areas, and require higher consumption than would be required if evenly distributed.
In other cases, the use of lateral fans aims to suck the air from the lower part of the roller conveyor and to drive it over the fruit, thus favouring the formation of turbulent flow in the region close to the fans, rather than laminar flow. This solution is inefficient in its performance because the fan does not reach the full size of the tunnel width, so that there is a difference in drying between the fruit passing through the centre of the tunnel and the fruit passing to the sides.
The problem of slowing down the air flow along the tunnel is known, some drying tunnels comprise an array of vertical or inclined fans, proceeding from the middle of the duct, according to the direction of the fruit, wherein the speed and temperature of the flow has been reduced. Thus, in addition to favouring the advance of the hot flow, an increase in the speed of the air with respect to the fruit is achieved, thus improving the performance of the plant.
Other parts of the mechanism with large dependency to be considered are the parts that contribute to the air quality, especially in the process of heating the drying air through it. Most of the previous systems use heat pumps with double exchange, first passing the air through a cold exchanger at the end of the tunnel, drying the air that has come into contact with the fruit, and then through a heat exchanger, in order to increase the temperature and reduce the relative humidity even more due to the expansion effect.
Such systems are more common in industrial dryers for rice and coffee beans and other fruits (ammonium glasses). The main difference is therefore that it works with air of low relative humidity, regardless of the ambient conditions.
Several inventions are notable (stand out), such as the one included in ES8206159 a1, which relates to a system for drying fruit in tunnels having 48 elongated nozzles that direct and vertically spray air generated in a fan over the fruit.
Due to the longitudinal positioning of the nozzles, conventional drying cannot reach all tunnel elements, thereby distributing the air unevenly throughout the fruits and vegetables. Furthermore, by having such an arrangement with an elongated open surface, a space is created through which hot air cannot be received directly.
Document US1447493A discloses another fruit drying system that directs air towards a tank, where the air is expelled at high speed through openings in the lower surface of the tank towards the fruit circulating on a conveyor belt. Said invention does not mention the type or cross section of these openings, nor the distribution of the openings along the lower surface, as in document US4777734A (which describes a tunnel having outlet holes in its lower surface which discharge air vertically above the items to be dried) and document WO02093097a1 (which relates to a drying system comprising two drying zones also perpendicular to the fruit moving under the machine, the air outlets being longitudinal).
Disclosure of Invention
With the described background in mind, the present invention is designed to solve the drawbacks of the prior art, improve performance and ensure that more fruit can be dried with the same air quality. Furthermore, the construction of the model detailed in the previous patent is simplified, improving the functional performance of the tunnel, enabling a higher productivity to be obtained during this processing stage.
To this end, the system is designed so that the hot air outlet for drying the fruits and vegetables is achieved by means of small circular or elliptical holes or nozzles, which enable an increase in the amount of air in contact with the surface of the fruit skin, maintaining the thermodynamic conditions of the air throughout the tunnel, and making the velocity of the air as high as possible at the moment of impact on the fruit, to favour the mechanical dragging of the water, and at the same time reducing the atmospheric pressure in this area, favouring the evaporation of the water without damaging the fruit.
More specifically, the invention consists of a drying tunnel for fruits or vegetables comprising at least one impact and heating chamber and a plenum (plenum) configured for receiving the outgoing hot air generated in the impact and heating chamber by the aforementioned generator.
The tunnel plenum comprises holes having a circular or elliptical cross-section arranged in a staggered pattern on a flat lower surface of the plenum, wherein the hole density is between 150 and 300 holes per square meter.
The holes are configured for discharging the distributed hot air in a vertical manner from inside the plenum towards a conveyor system that moves the fruits and vegetables to be dried.
The distribution of holes with a staggered pattern on the lower surface of the air chamber has been configured so that all parts of the transported element receive the hot air directly and vertically, and they are dimensioned so that all pressure energy is converted into velocity.
The air chamber consists of a closed space, wherein the air is distributed in the same way throughout the inner volume of the space. To this end, the air chamber has a decreasing rectangular cross section as it moves away from the air inlet, for maintaining the pressure conditions in the entire tunnel throughout the entire process from the beginning to the end of the fruit piece transport.
Thus, the air chamber is configured such that it releases hot air under the same pressure and temperature conditions throughout the movement of the fruit, achieving a more uniform flow distribution over all the holes in the tray by virtue of the geometry of the air chamber.
In one embodiment, the impingement and heating chamber includes a turbine that generates high pressure air and a heat generator that heats the air generated by the turbine.
In essence, the developed system functions by using the turbine as a source of hot air impingement above the air chamber at constant pressure. The air chamber releases air through its lower surface by means of a matrix of holes or openings regularly located on said surface.
The temperature reached by the output hot air from the impingement and heating chambers received by the plenum is between 25 ℃ and 45 ℃, which facilitates proper drying of the mass, since complete drying of the mass cannot be achieved at lower temperatures, and temperatures above the indicated range imply unnecessary energy loads.
When the drying tunnel is in operation and receives the outgoing hot air from the impingement and heating chamber, the static pressure of the air chamber is between 300 Pa and 800 Pa, which facilitates a proper air flow inside the tunnel and thus an optimal drying of the fruit mass.
The exit velocity of the hot air distributed through the holes from the plenum towards the fruit mass is comprised between 20 and 50 m/s, due to the operating regulations of the turbine impacting and heating the chamber and the configuration adopted by the openings.
In one embodiment, the tunnel comprises at least one aspirator element configured for drawing in the distributed hot air discharged through the openings and guiding the air drawn in by the aspirator through at least one lateral duct into the impact and heating chamber, generating a flow of hot air inside the tunnel due to the low pressure generated and to the mechanical drag of the water.
The aspirator sucks in a percentage of the distributed hot air that has previously been discharged through the openings, approximately between 50% and 90% of said air.
The intake air redirected to the impingement and heating chamber is mixed with the outside air, which is at a lower temperature and has a lower humidity than the intake air, which enters through the grille, the mixture of air being used for re-use in the drying of the fruit.
The aforementioned conveyor system consists of a roller conveyor, since, as mentioned in the background, it is a system that enables the pieces to be dried to move correctly and that enables them to rotate, so that the jets of air coming from the openings can reach the entire surface of each piece.
As the movement of air perpendicular to the fruit is released, the flow rate in contact with the surface is significantly increased and by concentrating the air directly towards the fruit, the drying process is improved.
Furthermore, by sucking the distributed hot air, which has been slightly cooled during the drying phase, the hot air intake through the holes is improved due to the low pressure generated in the suction, which improves the mechanical drag of the water and at the same time reduces the pressure in this area, thus facilitating the evaporation of the water.
Thus, in addition to the circular or elliptical arrangement of the air outlet openings, the novelty of the system is also the internal aerodynamics for improving the performance in both the drying phase and the pre-drying phase.
The productivity of the drying tunnel with this system is increased by a factor of two with respect to the productivity indicated in the background art. In other words, if the volume of heated air is compared with the amount of steam to be expelled, a tunnel of the same size as a conventional tunnel with this system can be operated at twice the throughput, thereby achieving good performance.
Drawings
To supplement the description provided herein, and for the purpose of facilitating an easier understanding of the characteristics of the invention, said description is accompanied by a set of drawings that form an integral part thereof, and which are represented by way of illustration and not by way of limitation as follows:
fig. 1 shows an axial rear perspective view of the fruit drying tunnel, wherein the conveyor system is not shown, so that the opening in the lower surface can be seen.
Fig. 2 shows a projection of the lower level (level) of the drying duct, showing the density and location of the staggered openings through which the hot air flows out across the entire surface.
Fig. 3 shows an external projection of the profile of the drying tunnel and the air recirculation duct together with the complete mechanism for moving the fruit.
Fig. 4 shows a projection of the upper horizontal plane of the entire drying tunnel, which enables the position of the recirculation duct to be appreciated.
Figure 5 shows an isometric perspective view of the entire tunnel.
Fig. 6 shows a cross-section of how the fruit is dried by expelling hot air through the openings towards the fruit (profile view).
Fig. 7 shows a cross-sectional perspective view of the entire drying tunnel, wherein the arrows simulate the air direction at each interval.
Detailed Description
As can be seen in the figures (in particular in fig. 7), the tunnel for drying fruits and vegetables, object of the present invention, consists of an impact and heating chamber (2), which impact and heating chamber (2) comprises a turbine and a heat generator, so that in this space an outgoing hot air flow (6) is generated which enters the air chamber (3) at a constant pressure.
The gas chamber (3), in the shape of a rectangular duct, has a rectangular cross section which decreases along its length, so that it enables the pressure conditions inside it (pressures between 300 Pa and 800 Pa) to be maintained.
As can be seen in FIG. 2, there are approximately 300 openings/m on the lower surface (1) of the air chamber2Which enables the distributed hot air (4) to be output towards a roller-based conveyor system (9) in which fruits or vegetables wetted as a result of a previous cleaning or waxing process are moved in order to be dried.
This distributed hot air (4) discharged through the openings (10) of the lower base (1) impinges directly on the surface of the fruits or elements present in the conveyor system (9) in a vertical manner, so that, due to its speed and temperature, it dries them during the period in which they move through the tunnel.
Due to the staggered arrangement of the openings (10) over the entire discharge surface (1), all parts of the fruit present in the conveyor system receive a flow of hot air from the moment they enter the tunnel until they come out at a constant speed in an efficient process in which the elements to be dried are not damaged.
The distributed hot air (4) used in the drying process is sucked by two aspirators (7) located on the sides of the initial section of the conveyor system (9) below the impingement and heating chamber (2), improving the air intake through the holes (10) due to the low pressure generated in the suction and the dragging of the water carried by the fruit on the surface.
These aspirators (7) generate an aspirated air flow (5) which, despite having dried the humidity present in the tunnel, remains at a higher temperature than the outside, and therefore is recirculated through two ducts (8), one for each aspirator (7), towards the impingement and heating chamber (2), for re-use, so that less energy is required from the heat generator to increase the temperature of the output hot air (6).
In order to reduce the humidity that this sucked-in air flow (5) may have, it mixes with the air coming from the outside from the grille (11) located at the rear portion of the impingement and heating chamber (2), providing the air mixture with optimal conditions for drying, which are controlled to adjust the degree of heating.
Claims (9)
1. A drying tunnel for fruits or vegetables, comprising at least:
-an impact and heating chamber (2); and
-a plenum (3) configured for receiving output hot air (6) generated in said impingement and heating chamber (2);
characterized in that said air chamber (3) in turn comprises:
-openings (10) having a cross-section selected from the group consisting of circular and elliptical, arranged in a staggered pattern, on the lower surface (1) of the air chamber (3), wherein the opening density is between 150 and 300 openings (10) per square meter;
wherein the opening (10) is configured for discharging the distributed hot air (4) from inside the plenum (3) in a vertical manner towards a conveyor system (9), the conveyor system (9) being configured for moving the fruits and vegetables to be dried.
2. Drying tunnel for fruits and vegetables according to claim 1, characterized in that said impact and heating chamber (2) comprises a turbine generating air at constant pressure and a heat generator heating the air generated by said turbine.
3. Drying tunnel for fruits and vegetables according to claim 1 or 2, characterized in that said outgoing hot air (6) from said impact and heating chamber (2) received by said air chamber (3) has a temperature between 25 ℃ and 45 ℃.
4. Drying tunnel for fruits and vegetables according to any of the previous claims, characterized in that when said air chamber (3) receives said output hot air (6) from said impact and heating chamber (2), the static pressure of said air chamber (3) is comprised between 300 and 800 Pa.
5. Drying tunnel for fruits and vegetables according to claim 1, characterized in that the exit speed of said distributed hot air (4) through said openings (10) is comprised between 20 and 50 m/s.
6. Drying tunnel for fruits and vegetables according to claim 1, characterized in that it comprises at least one aspirator (7), said at least one aspirator (7) being configured for aspirating said distributed hot air (4) expelled through said opening (10) and to direct the air (5) aspirated by said aspirator (7) through at least one lateral duct (8) into said impact and heating chamber (2), a flow of hot air being generated inside said tunnel due to the low pressure generated and to the mechanical drag of the water.
7. Drying tunnel for fruits and vegetables according to the previous claim, characterized in that the air (5) sucked by said aspirator (7) comprises a percentage comprised between 50% and 90% of said distributed hot air (4) discharged through said opening (10).
8. Drying tunnel for fruits and vegetables according to claim 6 or 7, characterized in that the sucked air (5) redirected to said impact and heating chamber (2) is mixed with external air at a lower temperature than said sucked air (5), said external air entering through a grille (11), said mixture of air being used for re-use in drying said fruits.
9. Drying tunnel for fruits and vegetables according to claim 1, characterized in that said conveyor system (9) consists of a roller conveyor.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ES201930314A ES2785800B2 (en) | 2019-04-05 | 2019-04-05 | TUNNEL FOR DRYING FRUITS AND VEGETABLES |
| ESP201930314 | 2019-04-05 | ||
| PCT/ES2020/070119 WO2020201593A1 (en) | 2019-04-05 | 2020-02-19 | Tunnel for drying fruit and vegetables |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113874670A true CN113874670A (en) | 2021-12-31 |
Family
ID=72666113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202080041232.5A Pending CN113874670A (en) | 2019-04-05 | 2020-02-19 | Tunnel for drying fruits and vegetables |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US20220175011A1 (en) |
| EP (1) | EP3951298A4 (en) |
| CN (1) | CN113874670A (en) |
| AU (1) | AU2020253959A1 (en) |
| CL (1) | CL2021002584A1 (en) |
| ES (1) | ES2785800B2 (en) |
| MA (1) | MA55552A (en) |
| MX (1) | MX2021012165A (en) |
| PE (1) | PE20212124A1 (en) |
| WO (1) | WO2020201593A1 (en) |
| ZA (1) | ZA202108216B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114413607A (en) * | 2022-01-25 | 2022-04-29 | 黑龙江中医药大学 | Hot air circulation oven for traditional Chinese medicine preparation process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777734A (en) * | 1987-09-08 | 1988-10-18 | Staalkat B.V. | Method and an apparatus for drying eggs, fruits or the like articles |
| US6023852A (en) * | 1998-09-11 | 2000-02-15 | Sunkist Growers, Inc. | Drying apparatus for coated objects |
| JP2005006612A (en) * | 2003-06-23 | 2005-01-13 | Mtec Co Ltd | Method for drying pickled plum and apparatus therefor |
| CN101995149A (en) * | 2009-08-19 | 2011-03-30 | 山东招源硅胶有限公司 | Mesh belt drying device |
| CN203561164U (en) * | 2013-11-07 | 2014-04-23 | 浙江大学 | Multilayer belt drying system |
| CN203837424U (en) * | 2014-05-20 | 2014-09-17 | 昆明康立信电子机械有限公司 | Tunnel type curing barn with air return function |
| CN206670294U (en) * | 2017-04-20 | 2017-11-24 | 李洪东 | A kind of wind-powered electricity generation drying device based on solar airing agricultural product |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1447493A (en) | 1922-01-14 | 1923-03-06 | Strawn Theodore | Process for drying fruit |
| GB526346A (en) * | 1939-03-14 | 1940-09-17 | William Wycliffe Spooner | Improvements in or relating to drying, conditioning and like apparatus |
| JPS4869762U (en) * | 1971-12-09 | 1973-09-04 | ||
| DE2502647B2 (en) * | 1975-01-23 | 1979-10-11 | Fa. A. Monforts, 4050 Moenchengladbach | Hole nozzle |
| FR2461217A1 (en) * | 1979-07-06 | 1981-01-30 | Mach Calibrage Cond | Hot air fruit drying machine - has conveyor passing under regulated airstream and fitted with draining hopper below fan |
| US4352249A (en) * | 1980-10-09 | 1982-10-05 | Fmc Corporation | Fruit dryer |
| US5651191A (en) * | 1995-07-28 | 1997-07-29 | Wolverine Corporation | Material treatment system |
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| WO2002093097A1 (en) | 2001-05-17 | 2002-11-21 | Backus Beheer B.V. | Apparatus for demoisturizing relatively vulnerable products |
| CN201589506U (en) * | 2009-10-23 | 2010-09-22 | 长沙楚天科技有限公司 | Oven of tunnel type sterilization dryer |
| US20140053424A1 (en) * | 2012-08-24 | 2014-02-27 | Buhler Aeroglide Corporation | Dryer Having a Direct Drive Fan |
| KR101509904B1 (en) * | 2013-07-25 | 2015-04-08 | 주식회사 에그텍 | egg drying apparatus |
| FI127350B (en) * | 2015-09-07 | 2018-04-13 | Raute Oyj | Nozzle box and dryer |
-
2019
- 2019-04-05 ES ES201930314A patent/ES2785800B2/en active Active
-
2020
- 2020-02-19 MA MA055552A patent/MA55552A/en unknown
- 2020-02-19 AU AU2020253959A patent/AU2020253959A1/en not_active Abandoned
- 2020-02-19 CN CN202080041232.5A patent/CN113874670A/en active Pending
- 2020-02-19 EP EP20781894.9A patent/EP3951298A4/en active Pending
- 2020-02-19 PE PE2021001665A patent/PE20212124A1/en unknown
- 2020-02-19 WO PCT/ES2020/070119 patent/WO2020201593A1/en active Search and Examination
- 2020-02-19 MX MX2021012165A patent/MX2021012165A/en unknown
- 2020-02-19 US US17/601,168 patent/US20220175011A1/en active Pending
-
2021
- 2021-10-04 CL CL2021002584A patent/CL2021002584A1/en unknown
- 2021-10-25 ZA ZA2021/08216A patent/ZA202108216B/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4777734A (en) * | 1987-09-08 | 1988-10-18 | Staalkat B.V. | Method and an apparatus for drying eggs, fruits or the like articles |
| US6023852A (en) * | 1998-09-11 | 2000-02-15 | Sunkist Growers, Inc. | Drying apparatus for coated objects |
| JP2005006612A (en) * | 2003-06-23 | 2005-01-13 | Mtec Co Ltd | Method for drying pickled plum and apparatus therefor |
| CN101995149A (en) * | 2009-08-19 | 2011-03-30 | 山东招源硅胶有限公司 | Mesh belt drying device |
| CN203561164U (en) * | 2013-11-07 | 2014-04-23 | 浙江大学 | Multilayer belt drying system |
| CN203837424U (en) * | 2014-05-20 | 2014-09-17 | 昆明康立信电子机械有限公司 | Tunnel type curing barn with air return function |
| CN206670294U (en) * | 2017-04-20 | 2017-11-24 | 李洪东 | A kind of wind-powered electricity generation drying device based on solar airing agricultural product |
Also Published As
| Publication number | Publication date |
|---|---|
| MA55552A (en) | 2022-04-27 |
| ES2785800A1 (en) | 2020-10-07 |
| ES2785800B2 (en) | 2021-10-05 |
| ZA202108216B (en) | 2023-12-20 |
| EP3951298A4 (en) | 2022-04-27 |
| AU2020253959A1 (en) | 2021-12-02 |
| CL2021002584A1 (en) | 2022-06-24 |
| WO2020201593A1 (en) | 2020-10-08 |
| MX2021012165A (en) | 2021-12-10 |
| EP3951298A1 (en) | 2022-02-09 |
| PE20212124A1 (en) | 2021-11-05 |
| US20220175011A1 (en) | 2022-06-09 |
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